Abstract:
BGO-OD is a fixed target experiment located at the ELSA accelerator of the University of Bonn, Germany for the investigation of the structure of the nucleon at low energies via meson photoproduction.
The real photon beam used in the experiment is generated by bremsstrahlung of an electron beam impinging a radiator. Due to the continuous bremsstrahlung spectrum, to determine the photon energy a Tagging System is needed. The recoiled electron is deflected in a dipole magnet and registered in a plastic scintillator Hodoscope.
In this talk, I will explain the Front-End Electronics developed to read out the Tagger Hodoscope.
I have designed this electronics as a three-stage chain: an analog buffer/amplifier, a dual threshold discriminator and a digital shaper. Excellent time resolution of the full electronics chain better than 15 ps
was demonstrated in the experiment.
